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Question
Which does form a colloidal solution in water?
Options
NaCl
Glucose
Starch
Barium nitrate
MCQ
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Solution
Starch
Explanation:
Starch forms a colloidal solution in water because it consists of large polymeric molecules that disperse but do not dissolve completely, thus forming a colloid. In contrast, NaCl, glucose, and barium nitrate dissolve to form true solutions, not colloids.
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